Rule-based algorithm for the classification of sitting postures in the sagittal plane from the Cardiff Body Match measurement system

Janusz Kulon; Adam Partlow; Colin Gibson; Ian Wilson; Steven Wilcox

doi:10.3109/03091902.2013.844208

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Rule-based algorithm for the classification of sitting postures in the sagittal plane from the Cardiff Body Match measurement system

Journal article

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Rule-based algorithm for the classification of sitting postures in the sagittal plane from the Cardiff Body Match measurement system

Janusz Kulon, Adam Partlow, Colin Gibson, Ian Wilson and Steven Wilcox

Journal of Medical Engineering and Technology, Vol.38(1), pp.5-15

2014

DOI: https://doi.org/10.3109/03091902.2013.844208

PMID: 24144171

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Abstract

Classification algorithms

Feature extraction

Sitting posture

Wheelchairs

The purpose of this paper is to present the design and implementation of a novel rule-based algorithm for the classification of sitting postures in the sagittal plane. The research focused on individuals with severe musculoskeletal problems and, thus, specific requirements for posture and pressure management. Clients' body shapes were captured using the Cardiff Body Match system developed by the Rehabilitation Engineering Unit, Cardiff and Vale University Health Board. The algorithm consists of four main steps: the first step is the symmetry line detection, the second step involves the mathematical analysis of the curvature of the backrest profile, the third step is the sitting posture classification and the fourth step is the extraction of the geometric parameters from the curve. The results show the classification system was successful in identifying four types of curves characterizing sitting postures using local derivatives as curve descriptors with an overall accuracy of 93.9%.

Details

Title: Rule-based algorithm for the classification of sitting postures in the sagittal plane from the Cardiff Body Match measurement system
Authors: Janusz Kulon (Author) - University of South Wales
Adam Partlow (Author) - University of South Wales
Colin Gibson (Author) - Cardiff and Vale University Health Board
Ian Wilson (Author) - University of South Wales
Steven Wilcox (Author) - University of South Wales
Publication details: Journal of Medical Engineering and Technology, Vol.38(1), pp.5-15
Publisher: Taylor & Francis
Date published: 2014
DOI: 10.3109/03091902.2013.844208
ISSN: 0309-1902; 1464-522X; 0309-1902
PMID: 24144171
Organisation Unit: Office of the Deputy Vice-Chancellor (Academic); University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99513772102621
Output Type: Journal article

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